wtf are you using a 100W iron and taking a minute per pin?
ive never burn an avr soldering it
actually i cant remember anything ive burnt soldering it
except some connectors because i sucked
Posted by renesis at 23:55 | permalink | 0 comments
lordpil's blog
baxandall
apperently this guy is tone control pimp
Posted by renesis at 13:26 | permalink | 0 comments
k
i can prob do that one tonight
can use the shallow conical cutter
nope
Posted by renesis at 13:16 | permalink | 0 comments
SMPS.
volts in, volts out, done
okay i should do board for vfd clock too, this break
the preamper is working \o/
Posted by renesis at 12:42 | permalink | 0 comments
macegr: orbital .22
sculptor: get a sense resistor
and probe across it
maybe have to use two channels in add/inv mode
get some .01% shit from digikey
even says how long you have to trim the pins!
rails are an opamps universe
UNDERSTAND THE NATURE OF THE RAILS
Posted by renesis at 12:34 | permalink | 0 comments
dx^: no check your order
you mean you ordered 5 radial caps
and they didnt come?
then you should call digikey
Posted by renesis at 11:44 | permalink | 0 comments
dx^: think so
http://darkertechnologies.com/image/dxdk_order.png
there was bit more stuff, too
i think
Posted by renesis at 11:29 | permalink | 0 comments
macegr: omg circuits are so much prettier bipolar
Posted by renesis at 11:23 | permalink | 0 comments
okay
this would be kinda pimp
take almost any input voltage
turn it into +15V/-15V
and use ps/2 minidin daisy chain for power
they sugarcoat it?
advil is tasty
i suck the coating off
ferrite
beads, toroids
okay fuckit
going to bipolar design
EVERYONE PUT YOUR FUCKING SEATBELTS ON
Posted by renesis at 11:11 | permalink | 0 comments
macegr: minidin-5 for power
just because its prob more common
just power, signal is gonna be miniplugs
like, VCC, VEE, GND, CHASSIS, spare thing
or maybe i dont need chassis cuz that stuff normally shielded
VCC/VEE/GND/SIGL/SIGR would be neat, but maybe bad for noise
Posted by renesis at 10:56 | permalink | 0 comments
or you can tell it: start at 10Hz and stop at 10KHz, and show me the AC freq response
and itll sweep your circuit and show a bode plot
Posted by renesis at 10:46 | permalink | 0 comments
timecop: R7, R5, R10, R6 wouldnt be neccessary with a bipolar supply
nor would C1
or R9
you cant use ground as ground
you have to use VCC/2 as ground
make more sense now?
timecop: what do you mean?
'random analog shit'
its spice
mostly transient analysis (time domain) and freq response (freq domain)
so like, you can put in a sine, and see if it come out without getting mangled
like thats three overlapping sine waves
Posted by renesis at 10:41 | permalink | 0 comments
timecop: do you care about the bipoloar supply thing?
neat
http://darkertechnologies.com/image/cs_preamp_input3.png
Posted by renesis at 10:36 | permalink | 0 comments
then you live thru all that shit
if youre still friends when its over, thats a true homie yo
og course
my mom got me some special edition of pulp fiction for xmas
ive already seen the two longer cut scenes tho
what
you havent seen pulp fiction
wtf
what are you doing right now?
watch it now
now now now
kk
im gonna call and tell them not to deliver the shit tomorrow
ima go pick it up
fuck them
i dont even wanna call and bitch
Posted by renesis at 10:28 | permalink | 0 comments
UGH
HALF SUPPLY REFERENCE MAKES ALL THE CIRCUITS UGLY
i was gonna use 24s for something
yeah but then theres a connector issue
also how to generate it issue
ha, i wonder if i could use stereo miniplugs for power
id have to rev protect the input
no just a bipolar supply
like, it makes analog circuit alot simpler
if you single supply, you have to use a half supply virtual ground
or just float sections of the design
yeah totally
so im thinking ps2 connectors
VCC, VCC, GND, CHASSIS
D= D= D=
dx^: ^
if you value your buddies friendship, run away
OR
do her
tell him
or tell her youre going to tell him
and shell maybe tell him
Posted by renesis at 10:23 | permalink | 0 comments
QFP QFP QFP
!
Quad Flat Pack
not Quad Fucked-up No-pins
i am remembering the Way of Opamps
Posted by renesis at 10:16 | permalink | 0 comments
smaller the reactive parts and antenna, the higher the frequency, the harder to design for
Posted by renesis at 10:05 | permalink | 0 comments
i dont like tradition way to draw NI and INV opamp circuits
two rotating directional antenna and a transmitter
if you want it to go thru shit, its gonna attenuate
so you can just guess based on amplitude
Posted by renesis at 10:00 | permalink | 0 comments
d0gzpaw: funky
okay preamp input circuit is new and improved, minimal
one opamp, input attenuator, precise 0dB-12dB gain control
you told me no remember
er
yes
you said only edges matter or something
our new microwave sucks
i think the metal think is eating its nucalur waves
Posted by renesis at 09:45 | permalink | 0 comments
okay i gone too nuts with my preamp and somehow strayed from minimalist zen
macegr: do you think it would be bad to troll the makefaire audiophools by doing an SMPS split supply?
and then i dunno, daisy chained ps2 kb/mouse connectors for power
okay but i guess pot on the input is less parts same outcome
Posted by renesis at 09:17 | permalink | 0 comments
nice
im gonna assembly grow lights, its only two prototypes
no chinese solder-ninja women for those boards
i always make way to much pasta
i wonder where my sure electronics stuff is
Posted by renesis at 09:11 | permalink | 0 comments
http://sound.westhost.com/p43-fig2.gif
split supply from DC h4x
Posted by renesis at 08:53 | permalink | 0 comments
dont youll get in trouble!
they will tax you more
go go go
do eeeeeeet
hmm
should i integrate the gain into the mixer stage?
hmm
hmmmmm
um, because then everyone would be the same stuff
and itd create stock dropouts and angry manufacturers
and they everything would become more expensive
because everyone pissed at digikey
and the people who arent pissed ran out so they dont matter
Posted by renesis at 07:00 | permalink | 0 comments
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=296-15329-5-ND
expensive
but i think ill use that or similar for the first stage of preamp
that way i can get lose noise, get rail to rail voltage swing, and put the vol pot after
so volume adjustments wont affect input circuit impedance
dx^: omg
feedback.
hiZ input, lowZ output, etc
yeah but you prob cant do it as good and as small as them
and fuck if i know how i would do a rail to rail video amp
but that way ill still have a high input clip voltage, then you can cut with the pot to make it right for the rest of the system
wat
ooooooooo
Posted by renesis at 06:55 | permalink | 0 comments
The machine was attached to a .22 semi-automatic pistol loaded with four bullets.
It was able to fire multiple shots into the man's head after he activated it.
what if he did it with cublocks
o
okay i got preamp and gain
Posted by renesis at 06:38 | permalink | 0 comments
ok
THE RECEIVER WAS NOT AVAILABLE TO SIGN ON THE 2ND DELIVERY ATTEMPT. A 3RD DELIVERY ATTEMPT WILL BE MADE
WTF NO ONE BEEPED
=( =( =(
its far if i tell them to hold it
Posted by renesis at 06:31 | permalink | 0 comments
if you do an opamp you have to dual with offset voltage
*deal
depends what kinda of accuracy, resolution you want
Posted by renesis at 06:21 | permalink | 0 comments
ok fuck balance
because you can do that with the amps anyway
vol, gain, bass, treble, rarar
Posted by renesis at 05:58 | permalink | 0 comments
dude one of my white LED fucked me up
and its got a 135d lens
Posted by renesis at 05:48 | permalink | 0 comments
my white ones are fucked up bright
ttmustang: maybe, know better by tonight
endmill should be here soon
Posted by renesis at 05:34 | permalink | 0 comments
maybe next year
its not that hard, its a long tail pair, a gain stage, and an AB output section (usually)
liberal use of voltage references and current sinks/sources/mirrors and Vbe multipliers, etc
what would be cool is headphone and power amps with opamp gain stages attached to AB output drivers
elliot sound has something like that, but he used diodes
for bias, i want to use a Vbe multiplier so i can play with bias currents easy
for why
to set current?
15 is reg value
Posted by renesis at 05:24 | permalink | 0 comments
http://darkertechnologies.com/image/cs_preamp_input2.png
ph33r
yeh pretty much
its the input circuit for your audio system
so you do a bandpass to kill any high or low freq stuff that might mess with the amps
and you do voltage gain if the power amps need it
w00t
why were they in spain?
dx^: its usually also where you do volume, balance, and simpler EQ controls
im debating whether to do balance or gain
Posted by renesis at 05:19 | permalink | 0 comments
w00t
input bandpass gain compensated
and input bias current compensated
because yeah fuckit, ill add a little noise and pcb space to be that much more technical
Posted by renesis at 05:09 | permalink | 0 comments
i have a cdwallet of like 24 CD
er *had
so was kinda bulky, but it was more music than i knew what to do with
yeah my rio was shitty
the rio and the sony were like night and day
the sony went 90_ hours and made you look like a loon
because it would cache mp3 data in about 3sec, and then shutdown for a couple minute
and it had clear edges on the lid
so people would see your rockin out, but your cd not moving, you just look nervous and weird
hahaha
Posted by renesis at 04:33 | permalink | 0 comments
ok
she says he try again today
sometimes they leave boxes on the truck and they dont get rescanned as out for delivery
dioxide: ogg is nice vbr
waaay back i had a shit Rio cdrw mp3 player, you could upgrade firmware thru a cd
and like, all the Rio forimware was upgraded to play ogg
except mine because the proc was too slow =(
*firmware
okok, but my fav mp3 player is still the sony cdrw one that did 90+ hours on two AA, and would recharge its own batteries (it knew if NiMH AA were used) when you turned it off
ultimate long distance vacation thing
i went on long trip like prob 8000 miles planes and busses
and then somehow lost it between LAX and my house =(
Posted by renesis at 04:27 | permalink | 0 comments
dunno
using mp3 at bitrates that high is kinda dumb
192+ is good for the ear
the biggest jump in quality is 128-160
yeah it all sounds the same above 192 to me
yeah pretty much
dx^: waiting furiously
doesnt play CD?
wtf
damn i think i had a dream i fixed my honda
yeah because its FFT based
wtf
tracking doesnt say out for delivery
WTF WHERE IS MY PKG
Posted by renesis at 04:20 | permalink | 0 comments
741 was the first one that didnt totally suck, i guess
daaamn that shit is ancient
is uA diff from LM?
nothing is older than avrfreak
speaking of old people, i wan dianora to come back
um, no
why dont you just use flac
then you can make all the crap mp3 you want out of it
ogg to even
yeah
i bz2 a bunch of wavs, and it gets close, but flac is always better
Posted by renesis at 04:15 | permalink | 0 comments
same as tl072
yeah but im not doing singles
maybe, i check
maybe if i had more space and moneys
(i remember the LF411 being slightly better part than the LF412)
non issue tho, for sim
i could use a 741, itll sim the same
just audio =)
not even real audio is like, simulated graphs of audio
dioxide: i do
sim to confirm
it saves me time
if i just start dicking with resistor and cap values i usually waste mad time =(
nuh uh
you mean the circuits or the fab time
im pretty sure 741 came out mid-early 70s
and then LF41x and TL07x came out after
Posted by renesis at 04:10 | permalink | 0 comments
but the tl072 data has a nice graph
and its THD in my passband range it like...
.003%
its 100mV on the tl072?
oooh yeah i see
lag sucks i cant see anything im typing
i bet charles is crying and DoSing dioxides box
rab: do they come in quads?
what do you mean exotic
i wonder what LF41x are for noise
Posted by renesis at 04:05 | permalink | 0 comments
digikey
296-7191-5-ND
maybe no one buying and they overstocked and in crisis mode
ti datasheet for ne5532 has no charts
and shit data
1KHz, 5 nV/sqrt(Hz)
so, 25nV/Hz, i guess
25mV @ 1KHz noise?
so obviously im doing it wrong
Posted by renesis at 04:00 | permalink | 0 comments
tl072b are cheaper, higher typical Vio, lower max
there is no gain on the opamp yet its in V follower mode
theres just negative gain on the input filter poles
which ima compensate for
k still checking
soic
TL072BCD = $.57@1 and $.42@25
B are the good ones
Posted by renesis at 03:55 | permalink | 0 comments
dx^: http://darkertechnologies.com/image/cs_preamp_input.png
analog h4x
generic opamp
circuit should act the same if you throw in anything
why
looks same
Vio and Iio are like comparable, bigger spread, tad better if you get lucky
Posted by renesis at 03:47 | permalink | 0 comments
it takes a few years
and that was like, going to class 4 times a week
yeah
analog you just eventually learn little blocks
Posted by renesis at 03:38 | permalink | 0 comments
i think winamp and foobar will do it with the disk writing output plugins
dunno tho
okay this is awesome
years and years ago i looked at preamp input circuit parts like 'whaaaaaaaaa'
total confusion, not i can pick -3db freq for the input bandpass and hit them like on the dot
*now
input coupling is only 680nF
no stupid electrolytics, about 23.6K input impedance, w00t
Posted by renesis at 03:32 | permalink | 0 comments
omg ti.lib wtf...
i think they made up their own ti.lib that aint no shit google knows about
Posted by renesis at 02:39 | permalink | 0 comments
oh you guys are getting off on the eagle user origin?
a little prob not bad for you
yeah
i use user origin in autocad alot
ususually in eagle i can get away with h4xing alt grid to get shit exatly where i want
tho i route on like a .005 grid usually anyway, not usually a problem
Posted by renesis at 02:34 | permalink | 0 comments
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